BAILLEUL Wastewater Treatment Plant, Bailleul, Hauts-de-France, France

The BAILLEUL wastewater treatment plant is located in Bailleul, a town in the Nord department of Hauts-de-France, France. It serves a population of approximately 16,024, placing it in the medium agglomeration category under European Union regulations. As a French plant, it operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size. The plant's designed capacity is 1.00, and it is part of the municipal wastewater infrastructure managed by local authorities. The treated effluent is discharged into the local watershed, which ultimately drains into the North Sea via the Lys River and the Scheldt estuary. This region supports diverse aquatic life and is important for migratory fish species.

The plant discharges into the local watershed that flows into the Lys River, a tributary of the Scheldt, which empties into the North Sea. This coastal basin supports diverse aquatic ecosystems and is an important corridor for migratory fish. The region's flat terrain and agricultural land use influence nutrient runoff, making effective treatment crucial for downstream water quality.